Performance Enhancement of Microstrip Patch Antenna Using EBG Structures for Wireless Applications
Keywords:
Bandwidth, Gain, Electromagnetic Band Gap (EBG) structure, Patch Antenna, Wireless Application.Abstract
Micro-strip patch antennas have been widely used for the application of RF and wireless system because of their small size, light weight and easy realization. In this paper improvement of gain and bandwidth of microstrip patch antenna is presented by using some special type of structures i.e. Electromagnetic Band Gap (EBG) structures. Electromagnetic Band Gap (EBG) surfaces have been of intense interest in recent years given their ability to suppress the propagation of electromagnetic waves in a frequency band. This suppression of electromagnetic waves leads to an enhancement of the maximum gain when a microstrip patch antenna is designed with EBG structures.The proposed antenna design is simulated on CST software using FR4 substrate with relative permittivity of 4.3 and thickness of 1.6mm. In this proposed antenna mushroom type EBG structures are used for suppressing the surface wave. The
bandwidth and gain of MPA is improved at same operating frequency.